环氧地坪呈白色狀的各原因及預防措施

环氧地坪泛白多發生在塗裝揮發性塗料的場合，嚴重時完全失光，塗膜上出現微孔，力學性能下降。环氧地坪泛白是指塗裝過程中和剛塗裝完畢的塗層表面塗膜呈乳白色，類似雲彩那樣變白失光的現象。环氧樹脂地坪泛白產生的原因，預防措施和解決辦法如下：
The whitening of epoxy floor mostly occurs in the occasion of coating volatile coatings, which completely loses its gloss when it is serious, micro-holes appear on the coatings and mechanical properties decrease. Epoxy flooring whitening refers to the phenomenon that the coating film is milky white in the process of painting and on the surface of the coating just finished, which is similar to the phenomenon of clouds whitening and losing light. The reasons for the whitening of epoxy floor, preventive measures and solutions are as follows:
原因一：塗膜在幹燥中，由於所用的有機溶劑的沸點低，揮發太快，降低瞭塗膜的表面溫度，會使部分水汽凝集在塗膜的表面形成白霧狀，引起渾濁或是失光。
Reason 1: In the drying process, bec透水地坪ause of the low boiling point of the organic solvents used, volatilization is too fast, which reduces the surface temperature of the film, and makes part of the water vapor condense on the surface of the film to form a white mist, causing turbidity or loss of light.
預防措施：添加防潮劑，註意施工現場的环境溫度，和濕度
Precautions: add moisture-proof agent, pay attention to ambient temperature and humidity at construction site.
原因二：施工現場空氣濕度太高（相對濕度超過80%） 塗裝場地的环境溫度最好在15-25度，相對濕度不高於70%
Reason 2: The ambient temperature of the painting site should be 15-25 degrees, and the relative humidity should not be higher than 70% when the air humidity is too high (relative humidity is over 80%).
預防措施：塗料和稀釋劑中含水，或壓縮空氣帶入水分 防治通過溶劑和壓縮空氣帶人水分
Preventive measures: water in coatings and diluents, o环氧地坪r compressed air into water prevention and control through solvent and compressed air to bring human moisture
原因三：快幹漆施工中使用大量低沸點的稀釋劑，塗膜不但會發白，有時也會出現多空狀和細裂紋
Reason 3: Quick-drying paint construction uses a large number of low boiling point diluents, the film will not only whiten, sometimes there will be many vacancies and fine cracks.
預防措施：快幹漆施工中應選用配套的溶劑，而去稀釋劑的用量也不宜過多，避免底漆中混入瀝青和雜酚油。
Preventive measures: In the construction of quick-drying paint, matching solvents should be selected, and the amount of diluent should not be too much, so as to avoid mixing asphalt and creosote oil into primer.
原因四：凝集在濕膜上的水汽，會使塗膜中的樹脂或高分子集合物部分析出，引起塗膜發白
Reason 4: Water vapor agglutinated on wet film will precipitate part of resin or polymer aggregate in the film and cause whitening of the film.
預防措施：可在塗料中加入適量的防潮劑（仿白劑）或丁醇類憎水劑
Preventive measures: appropriate amount of moisture-proof agent (white imitation agent) or butanol type hydrophobic agent can be added to the coating.